Originally Posted by
easymxp
Hello everyone,
my previous airline used this lenghty procedure for apu start on A32X family to avoid air/pack contamination events.
start apu, after avail wait one minute, then bleed on with both packs off for another minute and finally packs off. Is anyone else using this technique? My new airline has no limitation in apu bleed use immediately after apu start, just a note on fctm suggesting a 3 minutes warm up before selecting the bleed.
My company recommends a 3 minute warm-up time after APU start before selecting bleed on. Utilising this delay gives the seals time to warm-up and supposedly reduces cabin fumes incidents.